minBevel is similar in concept and functionality to mental ray’s mia_roundcorners shader but takes the idea one step further. With minBevel an artist can choose from several different types of bevel to automatically apply to hard corners and edges at render-time.
Usage
Low poly objects can be given a higher quality appearance through these fake bevels.
Perhaps even more useful is the ability to apply a secondary bump map that affects only beveled areas, thereby for example creating chiseled or rough worn edges and corners without the need for high-poly modeling or texturing.
